

The most common reason that leads to duplication is dragging a message to the Contacts folder in the Navigation pane in order to have a contact created automatically.

But regrettably, an option to dedupe the address book and combine multiple duplicate contacts into one is not on board. Microsoft Outlook provides loads of handy tools that we use and love and even more features that we are unaware of.

In this article you will learn how to merge duplicate contacts in Outlook without using any third-party tools, and how to keep your contact list clean in the future.
